23306676domain: NAppears in sequencesSmallest k for which k, 2k, ... nk all contain the digit 6.at n=26A039937Smallest k for which k, 2k, ... nk all contain the digit 6.at n=27A039937Smallest k for which k, 2k, ... nk all contain the digit 6.at n=28A039937Smallest k for which k, 2k, ... nk all contain the digit 6.at n=29A039937